While studying a nearby pair of merging galaxies using the Atacama Large Millimeter/submillimeter Array (ALMA)— an international observatory co-operated by the U.S. National Science Foundation’s National Radio Astronomy Observatory (NRAO)— scientists discovered two supermassive black holes growing simultaneously near the center of the newly coalescing galaxy.
![ALMA Scientists Find Pair of Black Holes Dining Together in Nearby Galaxy Merger](https://aui.edu/wp-content/uploads/2023/01/NRAO-004-galaxy_bh_merger2H-1152x600-1.jpeg)